//
// detail/base_from_completion_cond.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2022 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//

#ifndef ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP
#define ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)

#include "asio/detail/config.hpp"
#include "asio/completion_condition.hpp"

#include "asio/detail/push_options.hpp"

namespace asio {
    namespace detail {

        template<typename CompletionCondition>
        class base_from_completion_cond {
        protected:
            explicit base_from_completion_cond(CompletionCondition &completion_condition)
                    : completion_condition_(
                    ASIO_MOVE_CAST(CompletionCondition)(completion_condition)) {
            }

            std::size_t check_for_completion(
                    const asio::error_code &ec,
                    std::size_t total_transferred) {
                return detail::adapt_completion_condition_result(
                        completion_condition_(ec, total_transferred));
            }

        private:
            CompletionCondition completion_condition_;
        };

        template<>
        class base_from_completion_cond<transfer_all_t> {
        protected:
            explicit base_from_completion_cond(transfer_all_t) {
            }

            static std::size_t check_for_completion(
                    const asio::error_code &ec,
                    std::size_t total_transferred) {
                return transfer_all_t()(ec, total_transferred);
            }
        };

    } // namespace detail
} // namespace asio

#include "asio/detail/pop_options.hpp"

#endif // ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP
